Log-securing device



Magch s, 1927. 1,619,958

J. T. SANNAR ET AL LOG SECURING DEVICE Filed March 1.1, 1925 Patented Mar. 8, 1927.

umarmen' stares JOHN T. sannita AND cn-nsrnn n.

LALEBJ,4 OF ENTERPRISE, OREGON.

Lederwaren nnvrcn;

Application filed March 11, 1925. Serial No. 14,703.

Our invention relates to railroad'.trucksl they maybe readily released Without damage-` to theperson handling the truck.

A further object of our invention is toprovide means of the'character mentioned 1 which are simple and compactin const-rncL tion, very sturdy., and; adapted to iirmly holdz the logs in place; and which means-furthermore arey easily applied to standard trucks and cars. In thisy respect our invention is intended asv an improvement over the devices disclosed in, Letters Patent of the United States, entitled Logging truck No.` 1,512,771, granted October 21, 1924, to our; selves;

further andl particular object of." ourv present invention is to embody in structures of this character, an" improved chock: which is arranged to be used with a Wrapper chain for holdingthe logsin place and is adapted to relieve a large portion of the strain vvhich would othervviseibe exerted uponL said Wrapper chain; Said 'chock is made up ot a plurality of" coloperating pivoted members which are movable into engaging and disengagingA positions, relatively to the truck. In engaging position', said sections receive auxiliary support fromv the taut Wrapperchain which is placed about the logs. That is', the tautfvvrapper elia-in extends alongside of said sections of the chock and tends to hold the uppermost section in engagement with the logs so as to hold them in place. This'not only minimizes the necessary taut-v ness to which the Wrapper chains must be subjected but also tends to relieve the strain upon the means for holding the chock sections in engaging position. y

The details of construction of our inven tion are hereinafter fully described with reference to the accompanying drawings in which:

Fig. lV is a perspective view of a logging truck shown in dotted outline and with a car bunk and releasing mechanism carried thereby, said bunk` and releasing mechanism being shown` in full' lines g Fig; 2 is a vertical: section through said bunk and saidf releasing mechanism' and shows the arrangement ofthe devices when supportingaloadof'logs; i

Fig. 3 is av fragmentary view Ofour improved chock with the portions arranged in releasing position gr and v Fig. a, is a. fragmentary perspective view of the securing devices incur invention.V n

`Our invention is adapted for use upon a logging truck or car a and comprises a transverse member which is commonly7 known as a bunk. Said member comprises tWo- L-shaped angular sections b spaced apart by a member Z22 which is shorter and narron'erthan said L-shaped member b', thus leaving bifurcated portions 3 and b4 at cach end anda space b5 beneath thesame; In the bifurcated portion b4 at one end of said transverse member a iiXed chock c is mounted and in the bifurcated portion b3 at' the opposite end, our improved jointed chock l is mounted. Said jointed' chockl is made up of tivo,v sections d `and Z2 Which have cooperating portions or fingers Z3 and di, re.- spectively, Which engage each other and tend to hold the-chock d in uprightor engaging position, as shown in Figi. 2. Said fingers; permit said jointed chock tobecome separated when the upper section Z2 ismoved in a counter-clockwise direction, as shovvn in Fig. 3. This causes the'lower section df to move in a clockwise direction.

rlhe member CZ is pivoted upon. ay pin l5 which entends through the angular sections 7), and themember cl2 is pivoted upon az pin d, which is similarly carried by said sections Z2. Said pin Z? is arranged so that when said member d? moves4 to releasingposition it lies vvhollybelovv the top ofl the angular sections b" and thus out of the path of the logs which roll from offv said end.` In other Words, the pivot for said member Z2 is arranged so that when said car stake is tripped the portions are permitted to fall` below the upper surface of thetransverse members so as not to be injured by thelogs relied over thev same. i

lThe member d` carries a pin e which is adapted to hold the freeend of the Wrapper chainy'i'and one end of the tripping member Said tripping member is preferably made up of a rod g, provided at each end with short lengths of chain g2 and g3. Said spacing member 52 is slightly less in Width than said angular members b and thus a space 55 below said spacingmember?)2 is provided which constitutes a passageway in which said tripping member may slide.

As -shovvn in Fig; 3, the free end of the chain g? is placed on said' pin e, over the iria Lam:

Y at the opposite end of said transverse member. IVhen it passes through the narrow portion of the hole is held in place thereby.

The end of the wrapper chain f at that side is fastened by a hook-shaped member j which is held by4 a clevis 7c fastened to the car stake c; Said hook-shaped member y' is adapted to clip one link of the chain which is arranged fiatwise to said hook and the links at each side of said link, being arranged transversely thereto, tend to prevent said hook from slipping from place.

The operation of our device is as follows:

The jointed chock. (Z is arranged so that the parts are alined and said chock assumes a vertical position relatively to the transverse member so as to be arranged in engaging position, relatively to the logs. rIhe free end of the wrapper chain is passed over the pin e and the end of the chain g2 is also passed over said pin so as Yto hold the end of the wrapper chain f in place. Said trip ping devices are then drawn taut and one link of the chain g is passed into the narrow portion of the key-shaped hole 7c so as to hold said car stake Z in upright position.

Logs Z are then placed on said truck and one end of said logs is supported by the transverse member b at each end thereof. Said logs are prevented from rolling olf the ends of said transverse members by the chocks c and (Z. Ihen a sufficient load of said logs have been loaded in place, said wrapper chainsare thrown over said logs and made tight and caught by the hookshaped member y'. The logs can then be safely transported'on said trucks to their destination. A

Upon reaching their destination, the tripping devices can be released from the side away from the one upon which said logs are dumped. This is accomplished by removing the chain g3 from the narrow portion of the hole it and permitting it to slide through the larger portion. This permits the member d of thechock cl to rotate clockwise and permits the other portion Z2 to rotate counterclockwise and to assume a position in which it lies below the top of the members D. The rotating of member CZ in the opposite direction from member cl2 permits the taut wrapper chain to 'Hy from off the pin c and to pull the chain g2 from o said pin also. The logs Z are then permitted to roll'` off the end of said transverse members.

As can be noted in Fig. 2, the portions cl and (Z2 of the jointed car stake Z are arranged so that the wrapper chain f extends along one side thereof to hold the same in position. That is, the tension of the wrapper chain tends to hold said sections in position against the force of the logs to move said member Z2 outwardly. The arrangement of the devices in this manner thus tends to eliminate somewhat, the tension to which the tripping devices and also the wrapper chains would be otherwise subjected, in holding said chock members in vertical, engaging position.

We claim:

l. In a logging truck, log securing means comprising a chock atone side thereof, said chock composed of a plurality ofco-operating members adapted to be moved into log engaging and disengaging and releasing positions, a pin carried by one member of said chock, and a wrapper chain, one end of which is fastened at the opposite side of said car, with its free end mounted over said pin, said chain when engaged with said pin be'- ing arranged to support one of .said chock members in log engaging position.

2. In a logging truck, log securing means comprising a chock at one side thereof, said chock composed of a pluralityof co-operating members adapted to be moved into log engaging and disengaging and releasing position-s, a pin carried'by one member of said chock, a wrapper chain, one end of which is fastened at the opposite side of said car with its free end mounted over said pin, said chain when engaged with said pin being arranged to support said chock members in log engaging posi-tion, and means engaged with one of said members and the opposite side of the car for holding the chock members in log engaging position.

3. In a logging truck, log securingv means comprising a chock at one side thereof, said chock composed of a plurality of co-operating members adapted to be movedinto log engaging and disengaging and releasing positions, a pin carried by one member of lsaid chock, a wrapper chain one end of which is fastened at the opposite side of said car with its free end mounted over said pin, said chain when engaged with said pin being arranged to support said chock members in log engaging position, anda chain engaged with said pin and releasably fastened at the opposite side of the car for holdingthe chock members in logV engaging position.

4. In a logging truck, log securing means comprising a pivoted vertically movable chock at one side of the truck, a pin carried thereby, a wrapper chain for the logs, one end of which is fastened at the opposite side of the truck and provided with an eye at its free end for securing on said pin, a trip element extending across the truck and provided With an eye at one end also for securing on said pin, and, releasable means for securing the opposite end of the trip' element to hold the pin against the strain of the wrapper chain.

5. In a vlogging truck, log securing means comprising a pivoted vertically movable chock at one side of the truck, said chock composed of two members pivoted one above the other, a pin carried thereby, said ineinber-s provided With means for engaging with each other, and adapted to fall in oppositer directions when released, the lower of said members provided With a pin, a Wrapper chain for the logs, one end of which is tust-ened at the opposite side of the truck and provided with an eye at its free end for 10 securing on said pina a trip element extendlng across the truck and provided With an eye at one end also for securing on said pin,

and releesable means `for securing the opposite end of the trip element to hold the pin 15 

